API603 Series Globe Valve API603 series globe valve is widely used in fine chemicals and food factory. The wall thickness of this series globe valve is strictly in accordance with ANSI B16.34 and is lighter than conventional API600 series globe valve. The specially designed extended bonnet construction meets the requirement of cryogenic conditions. Specification: Size: 2~24 Pressure Rating: Class150~300LB Main Materials: Stainless Steel, Alloy Steel, Duplex Steel etc. Design and Manufacture:API603 Face-to-Face:ASME B16.10 Ends Connection: Flange, Butt Welding Inspection & Testing: API 598 Operator: Handwheel, Worm Gear, Electric. Feature: Straight Pattern Body Design OS&Y, BB Integral Yoke with Bonnet Loose Disc (plug or ball type disc)